SPEECH - The Reserve Bank of New Zealand's Governor Don Brash is urging people to be realistic about what monetary policy can achieve. Speaking to the Trans-Tasman Business Circle in Sydney on Mar 30, 2001, Dr Brash said that "In recent years ... the public have come to believe that central banks can achieve very much more than they can, in reality, deliver." The risk, he said, was that, when economies failed to perform to expectations, "Central banks will receive far more than their fair share